[2000] Grey Knights - Draigowing (is it still effective?)

[Akaiyou]

How effective is Draigowing currently? I'm thinking of running this list in a semi-competitive enviorment (we use formations, LoWs etc)

2000 Pts - Codex: Grey Knights Roster - CAD - Draigowing

: Combined Arms Detachment (24#, 2000 pts)
1 Librarian, 165 pts (Teleport Homer)
1 Domina Liber Daemonica
1 The Soul Glaive

1 Terminator Squad, 450 pts
1 Terminator Justicar (Nemesis Warding Stave)
2 Grey Knight Terminators
2 Grey Knight Terminators (Nemesis Daemonhammer)
1 Land Raider (Multi-melta)

1 Terminator Squad, 440 pts
1 Terminator Justicar (Nemesis Warding Stave)
2 Grey Knight Terminators
2 Grey Knight Terminators (Nemesis Daemonhammer)
1 Land Raider Redeemer (Multi-melta)

1 Paladin Squad, 700 pts
1 Apothecary (Nemesis Warding Stave)
4 Paladin (Nemesis Force Halberd; Psycannon)
1 Paladin (Brotherhood Banner)
2 Paladin (Nemesis Falchions)
2 Paladin (Nemesis Force Halberd)

1 Kaldor Draigo, 245 pts (Warlord)

Total Roster Cost: 2000